o!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		 <input id = "alert" value = "alert" type = "button" onclick = "alert;');"/>  
        <input id = "confirm" value = "confirm" type = "button" onclick = "confirm('过年回家你确定吗？');"/>  
        <input id = "prompt" value = "prompt" type = "button" onclick = "var name = prompt('请输入你的名字:','请输入 你的名字'); document.write(name) "/>
 

	</body>
</html>
